If you no longer want the Cost Code Workers' Comp Group to be used to determine the WC Code, you can remove it from the Job in Job Cost.

1. Go to Job Cost, Setup, Jobs.
2. Select your Job and go to the Scope and PR tab.
3. Click in the Workers' comp group field.
4. Delete.

If you want to delete the table completely in Payroll you'll need to remove each line on the table, then clear the table id.

1. Go to Payroll, Setup, Other Tables, Cost Code WC Tables.
2. Select the table you want to delete.
3. Use the Enter key to move out of the header.
4. Select a line on the table.
5. Click Delete line.
6. Repeat steps 4 & 5 until all lines on the table are deleted.
7. Click in the table name field.
8. Click Delete.
9. Click Close.